Lampblack-machine.



No. 654,|7I, Patented July 24, 1900..

J. L. MANN.

LAMPBLACK MACHINE.

(Application filed Dsp. 1, 1899.)

(No Model.)

WI FM lV/TNESSES INVENTOR TATES ATE Finest JOHN L. MANN, or BURROWS, PENNSYLVANIA, ASSIGNOR OFTHREE FOURTHS TO 0. H. HEIM, or KA E, AND N. B. BUBB AND A. D. HERMANoE, or WILLIAMSPORT, PENNSYLVANIA.

LAM PBLAOK-MAGHINE.

SPECIFICATION forming part of Letters Patent No. 654,171, dated July 24, 1900.

Application filed December 1, 1899. Serial No. 738,895. (No model.)

T to whom it may concern:

Be it known that 1, JOHN L. MANN, a resident of Burrows, in the county of McKean and State of Pennsylvania, have invented certain new and useful Improvements in Apparatus for Manufacturing Carbon-Black; and I do hereby declare the following to be a full, clear, and exact description of the invention, such as will enable others skilled in the art to which it appertains to make and use the same.

My invention relates to an improvement in an apparatus for manufacturing carbonblack, the object of the invention being to provide an apparatus of the above-mentioned character which will manufacture the greatest possible amount of carbon-black with the least quantity of gas.

With this object in view the invention consists in certain novel features of construction and combinations and arrangements of parts, as will be more fully hereinafter described, and pointed out in the claims.

In the accompanying drawings, Figure 1 is a View, partly in section, illustrating my improvements. Figs. 2, 3, 4, 5, and 6 are enlarged views of details. Fig. 7 is a partial section showing the relation of the brushes to the roller or tube.

A represents a casing preferably converging at its upper and lower ends, as shown. A gas-pipe 1, disposed horizontally in the easing, near the bottom thereof, is supported on brackets 2, secured to the casing, and communicates with any approved gas-main 3 outside of the casing. The pipe 1 is provided on its upper face with a series of burners 4, on which are mounted brackets 5, adapted to support mantles 5 of wire-gauze orother noninflammable material. roller ortube 6 is revolubly mounted at its ends in bearings in the casing, and the ends of said tube preferably project outside of said casing to permit a free circulation of air through them. One end of said tube 6 outside of the casing is provided with a gear 7, adapted to mesh with any approved operating-gear (not shown) for turning the tube. The roller or tube 6 is so corrugated as to form a series A corrugated hollow of circular enlargements 8, beneath each of which a gas-burner 4: is disposed. A bar 9, preferably having knife-edge trunnions 10, mounted in brackets 11, secured to the easing, is provided with a seriesof downwardlyprojecting brushes 12, (preferably of wire,) held against the corrugated tube 6 by means of a weighted arm 13, connected to one end of the bar and projecting laterallytherefrom, so as to tend to turn the bar on its bearings, and thus hold the brushes against the tube and effectually remove the deposit of carbon-black thereon. An air-inlet pipe passes through the casing near the bottom thereof and is pro vided in its lower face with perforations to permit the escape of air into the casing and at the same time prevent the perforations from being clogged by the falling carbonblack. Each end of the pipe 15 outside the casing is bent downward and communicates with a rectangular hood 16, having ascreened opening 17 in one side to permit the entrance of air, and a damper 18 is provided for said opening 17 to regulate the passage of air therethrough.

Any approved worm or other conveyer 19 is provided in the contracted bottom of the casing A to discharge the carbon-black, and a damper 20 is provided in the top of said casing. A lever 21, fulcrumed between its ends on a bracket 22, is connected at one end to the dam per 20 and atits free end is provided with a downwardly-extending rod 23, terminating in convenient position to be reached by the operator for operating the damper to regulate the passage of air through the casing.

I would have it understood that I may employ any number of pipes 1, tubes 6, and brush-supporting bars 9 as may be desired; but for the sake of convenience I have only shown one set.

It will be seen that with my improved apparatus the air inlet and damper can .be so arranged as to permit any desired circulation of air, and hence regulate the quality of carhon-black made, and it will also be seen that by employing mantles they will regulate the quality of carbon black and will also prevent the current of air from deflecting the flame,

and hencewa steady flame will Bela-tall times;

paratus in the production of a very large.

quantity of carbon-black of a superior quality. I have found in practice that the perforated mantle serves in a sense toconduct the flame to the surface of the roller and cause it to spread just before it reaches the roller. The flame after passing centrally through the perforated mantle being thus spread out or difiused a large quantity of carbon-black is atonce deposited on the roller, and such quantity of black as might remain in. the

products of combustion escaping from and passing-above theroller will be comparatively small. The mantles extend upwardlyfrom the burners and terminate comparatively close tothecorrugated roller. Without the useof the perforated mantle the point of the flame will strike the roller, and the consequenceis that a large amount of carbon-black will escapepast the roller with the products ment of the several parts described without departing from the spirit and scope of my invention, and hence I would have it understood that I do not limit myself to the precise details setLfOrth, butconsider myself at liberty to make such slight changes and alterations as fairly fall within the spirit and scop of my invention.

Having fully described my invention,what .Iclaimi as new, and desineto-secure by Letters "Patent; is

1'. In an apparatus-for manufacturing carbon-black, the combination of -a corrugated roller, means for exposing said roller to a lfiameand means for scraping said roller.

2. In an apparatus for making carbonblack, the combination with a roller having 1 artseriesof" circumferential ridges, ofaburner disposedunder each ridge and a brush disjposed over each ridge.

3. In an apparatus for manufacturing car.- bon-black, the combination with a circumferentiallycorrugated. roller, of a series of burners disposed below said rolle'r', a. perforated mantle between each burner and said" and tending to cause it: toturn on'rock on its bearings and press the brushes against; the roller.

In testimony whereof I have signed this specification in the presenceof twosubscribing witnesses.

J. L. MANN.

\Vi tn esses E. (J. ANDERSEN, G. F. DOWNING. 

